ye CASAS GRANDES TO 
where we were told are many larger masses. The 
annexed drawing gives the appearance of this singular 
mass. There is another larger mass within the garrison 
grounds, of which I did not take a sketch. With much 
labor Dr. Webb broke off a fragment of this meteorite 
for the purpose of analysis. , 
Nearly all our Mexican arrieros got drunk to-day, 
and caused much disturbance in the town. I would 
have discharged them, but could find none to take 
their places. 
July 19th. We were off this morning before the 
sun had risen, and soon entered a thickly wooded val- 
ley of mezquit. A ride of nine miles brought, us to 
the mission of San Xavier del Bac; truly a miserable 
place, consisting of from eighty to one hundred huts, 
or wigwams, made of mud or straw, the sole occupants 
of which are Pimo Indians, though generally called 
Popagos. In the midst of these hovels stands the 
largest and most beautiful church in the State of 
Sonora. It is built of brick on the summit of a low . 
hill, and has two towers anda dome. In a square, 
around and directly connected with the church, are 
some adobe houses, which were occupied when the 
Mission was in a flourishing state. All save one are now 
tenantless, and this, which adjoins the church, is occu 
pied by the only Mexican family in the place. The 
train passed directly through, while a few of the gem 
tlemen and myself drew up at the church door 19 
* examine its interior. 
This church has more pretensions. to architectural 
beauty than any I saw in the country, although its 
general character is the same. It is elaborately oT* 
